3 Sided stool



FIG. 1 is a perspective view of a design for a 3 sided stool;

FIG. 2 is another perspective view of said design;

FIG. 3 is another perspective view of said design;

FIG. 4 is another perspective view of said design; and,

FIG. 5 is another perspective view of said design.

The ornamental design for a 3 sided stool, as shown and described.